Table 2. Statistics of de novo assembly.

	Libraries	Percentage of reads assigned to Unigenes	Number of Unigenes	Total Length	Mean Length	N50
Storage Roots	SR1	58.74%	77,956	80,657,943	1039	1727
	SR2	56.74%	90,238	98,402,901	1090	1807
	SR3	54.34%	84,060	87,889,002	1046	1724
Fibrous Roots	FR1	57.32%	90,013	95,982,678	1066	1762
	FR2	53.95%	117,282,	119,457,513	1019	1750
	FR3	56.61%	92,268	99,420,748	1078	1774
	All	56.28%	161,926	208,090,130	1285	2107